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How do I install the latest pi 400 WiFi drivers (BCM43456 - Printable Version

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How do I install the latest pi 400 WiFi drivers (BCM43456 - andy kopac - 2022-03-13

I use OP extensively and put a fresh install and update and upgraded on a pi 400.  I can use 5ghz, but 2.4ghz refuses to work.  I have a printer on 2.4ghz.  I even ran the WiFi driver install in the OP apps.  Has anybody else run into this problem?  I did some searching and there have been some driver updates.  I’m thinking this should be in the image upgrade for OP if it’s not already.


RE: How do I install the latest pi 400 WiFi drivers (BCM43456 - Sailoog - 2022-03-14

Raspberry OS buster or bullseve?


RE: How do I install the latest pi 400 WiFi drivers (BCM43456 - andy kopac - 2022-03-15

(2022-03-14, 06:21 PM)Sailoog Wrote: Raspberry OS buster or bullseve?
Buster release 10.


RE: How do I install the latest pi 400 WiFi drivers (BCM43456 - andy kopac - 2022-03-18

(2022-03-15, 02:46 AM)andy kopac Wrote:
(2022-03-14, 06:21 PM)Sailoog Wrote: Raspberry OS buster or bullseve?
Buster release 10.

Hi Sailoog
Is there a solution for this?  I'm trying to connect a RPI zero w now for a pypolot and it won't connetct?


RE: How do I install the latest pi 400 WiFi drivers (BCM43456 - Sailoog - 2022-03-19

Difficult to me to debug, I have not the Pi 400. some tips:

- Have you tried with a fresh Raspberry OS? if this does not work in Raspberry OS it will not work in OP.
- Have you tried OpenPlotter 3?
- Have you tried with another wifi channel?


RE: How do I install the latest pi 400 WiFi drivers (BCM43456 - e-sailing - 2022-03-24

On my Pi400 2.4Ghz AP does work with internal wlan as it should (buster (apt update apt upgrade)).
modinfo brcmfmac
name: brcmfmac
vermagic: 5.10.103-v7l+ SMP mod_unload modversions ARMv7 p2v8
openplotter-network 2.1.5


RE: How do I install the latest pi 400 WiFi drivers (BCM43456 - andy kopac - 2022-03-26

(2022-03-24, 11:47 PM)e-sailing Wrote: On my Pi400 2.4Ghz AP does work with internal wlan as it should (buster (apt update apt upgrade)).
modinfo brcmfmac
name:           brcmfmac
vermagic:       5.10.103-v7l+ SMP mod_unload modversions ARMv7 p2v8
openplotter-network 2.1.5

Yep!  It’s in the updates.  It works.  I did the updates before, but it didn’t work.  Looks like there is a kernel update.  That would do it wouldn’t it?